When it comes to measuring the popularity of a musician or artist, there are many factors to consider, including such traditional yardsticks as album and ticket sales. But when measuring popularity in the digital world, one of the many factors to consider is Twitter followers. Twitaholic has compiled a list of the top tweeters based on followers, with musicians occupying seven of the top 10 spots. So who is your favorite 140 characters-or-less character? TWIM favorite Lady Gagais the Twitter queen, with 15.3 million followers, followed by fellow TWIM favorite Justin Bieber (14 million) and Katy Perry (11.6 million). Though not a musician but still worth mentioning as he's the Commander in Chief (and also a GRAMMY winner), President Barack Obama rang in at fifth place with 10.9 million followers. Other artists making the top 10 were Britney Spears (10.7 million), 2011 Latin Recording Academy Person of the Year Shakira (9.8 million), Rihanna (9.2 million), and Taylor Swift (8.8 million). You can also follow Lady Gaga on Nov. 30 as she's set to perform at "The GRAMMY Nominations Concert Live!!"

When thinking of sexy bedroom songs, what comes to mind? Perhaps Marvin Gaye's "Sexual Healing," Bad Company's "Feel Like Making Love" or Donna Summer's "Love To Love You Baby." The list could go on for days. But what about unsexy songs that turn you off? According to a survey of participants on music-based dating website Tastebuds.fm, there are a few artists who might be winning on the charts, but you wouldn't want to see in a potential mate's music collection. Coming in as the No. 10 musical turnoff is Britney Spears (apparently her slave offers weren't enough). Lil Wayne made the list at No. 9, Katy Perry came in at No. 8 (we guess she's not everyone's teenage dream), Creed were voted in at No. 7, and U2 were voted as the unsexy No. 6 (though we thought "With Or Without You" was pretty romantic). Making the top five were Coldplay, Ke$ha, Lady Gaga, Justin Bieber, and, topping the list, Nickelback. Next time you're trying to impress that special someone, you may want to think twice before putting on "Photograph." Of course, all these acts are happy being unsexy all the way to the bank.

In more sexy (or unsexy) Bieber news, could the young popstar be the father to a baby, baby, baby, oh? According to a report, a woman named Mariah Yeater is claiming she met the teenage heartthrob backstage at a concert in Los Angeles last October, and that now Bieber is the father of her 3-month-old baby boy. The young stud reportedly asked the woman to go "somewhere private" and, well, you can put two and two together and figure out what allegedly happened next. But Bieber's camp has been quick to deny these claims, saying, "While we haven't yet seen the lawsuit, it's sad that someone would fabricate malicious, defamatory, and demonstrably false claims. We will vigorously pursue all available legal remedies to defend and protect Justin against these allegations." And on Nov. 2 Bieber tweeted, "all the rumors…the gossip…Im gonna focus on the positives…the music." While the lawyers will certainly get to the bottom of this, it looks like they may be the least of Yeater's fears as Justin's beliebers are coming out in droves to set the record straight. One fan tweeted, "Mariah Yeater, u're going down. Bieber's lawyers will knock u down. Beliebers will tear u apart and u will end up with ur baby in jail."

At any given time around the world, there are groups who, for valid reasons or not, draw the ire of authorities. For example, insurgents in Afghanistan continue to disrupt U.S. efforts in the region while Occupy Oakland protestors are getting tear-gassed by local police. According to the FBI, there's another dissident group to add to the list: fans of make-up metal band Insane Clown Posse. Known as Juggalos, the fans have been classified as a gang in the FBI's 2011 National Gang Threat Assessment for exhibiting gang-like behavior and criminal activity in more than 20 states, though they are only formally a gang in Arizona, California, Pennsylvania, and Utah. According to Billboard.biz, The fans are best known for their Gathering of the Juggalos, an annual four-day festival of concerts, wrestling matches, autograph sessions and artist seminars that takes place every August at Cave-In Rock, Ill. It seems honorary Juggalo Charlie Sheen made an appearance at the most recent gathering, where he was both cheered and pelted with garbage while on stage, though rock stars from Mars apparently didn't make the FBI gang list this year.

Throughout November, those who have the capability of growing a mustache in a month's time are foregoing the laborious ritual of shaving as part of the Movember movement, a project raising awareness for men's health issues, specifically prostate cancer. Alternative rock group Cake are getting in on the cause with their mustache-growing contest, which invites fans to submit photos of their 'staches via the band's page on the Movember website. The submissions will be judged in three categories: The Largest, The Most Nostalgic and The Most Dangerous. One grand prize winner will be chosen from each category and will receive two concert tickets to see the band perform in Atlanta on New Year's Eve, including airfare and hotel accommodations, admission to a private soundcheck, a meet-and-greet with the band, and an onstage introduction. The contest ends Dec. 3 and the hairy winners will be announced on Dec. 6. "It's time for the mustache to become a force for positive change," commented frontman John McCrea. We're hoping this will inspire Cake to write a new song and call it "Short Beard/Long Mustache."

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